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Erratum

The original article was published in Environmental Health and Preventive Medicine 1997 2:BF02931974

The original article was published in Environmental Health and Preventive Medicine 1997 2:BF02931975

The original article was published in Environmental Health and Preventive Medicine 1997 2:BF02931976

The original article was published in Environmental Health and Preventive Medicine 1997 2:BF02931977

The original article was published in Environmental Health and Preventive Medicine 1997 2:BF02931978

The original article was published in Environmental Health and Preventive Medicine 1997 2:BF02931979

Additional information

The online version of the original article can be found at http://dx.doi.org/10.1007/BF02931974

The online version of the original article can be found at http://dx.doi.org/10.1007/BF02931975

The online version of the original article can be found at http://dx.doi.org/10.1007/BF02931976

The online version of the original article can be found at http://dx.doi.org/10.1007/BF02931977

The online version of the original article can be found at http://dx.doi.org/10.1007/BF02931978

The online version of the original article can be found at http://dx.doi.org/10.1007/BF02931979

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